Rumble/Roar

Rumble/Roar.
Like mechanical thunder
Gears groan, pop, shift,
Tense, unwind, whir and hiss, and tense again.

Nothing in motion but the potential is there!

Rumble/Roar
What would be a soothing sound
Unsettles as the hint of a high-pitched whine breaks through.
Drunken excess.